In Exercises 3134, use a graphing utility to graph the exponential function. y 3x y
Crime Scene Investigation Notes Week of 3/16/16 Steps of CSI walk through - When investing the crime scene it is imperative to do an “initial walk” through of the entire scene. st A. While at the crime scene you need to talk to the 1 responding officer (this is usually a cop who is the first one at the crime scene; he is usually responsible for providing information about the scene). - He may provide background information which includes the following: 1. The entire crime scene (meaning how far it spans, distance) 2. A timeline of events leading up until the time he got there 3. The parties that were involved (in this phase the officer would try to get statements from witnesses, the suspect, or the victim) B. While still doing the walk through, you should begin to document the crime scene. Documentation begins before you collect evidence in order to preserve the crime scene. This can be done using: 1. Notes 2. Photographs 3. Video recordings C. After documenting the entire crime scene, begin to collect all physical evidence. You may also want to get additional statements from the witnesses, suspect, victim, or family and friends. Physical Evidence A. When in the process of collecting physical evidence, one should determine what the limits of the crime scene are. -This is usually used to refer to the areas in which the victims and/or suspects moved about in the time that the crime was committed. It can be one small area or multiple sites (it is important that this is known because it will help while investigating how and why the crime was committed as well as for reconstruction). B. Use the crime scene as a source of evidence. -More than likely you will find all the evidence you need for connecting evidence to the crime scene as well as the suspect or victim (associative evidence). - Identify the “how” of the crime scene (also called the modus operandi) or method of operation of the crime scene ▪ This is a technique which helps the investigator identify the perpetrator based on the methods he used to commit the crime C. The purpose of searching for physical evidence is for the following reasons: 1. To locate/identify associative evidence 2. To figure out who was involved, what happened, where it happened, when it happened, and how it happened 3. To figure out the motive 4. To establish the modus operandi 5. To identify all objects at the scene and identify their use or purpose
